_ the environment is becoming more and more important. [

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_ the environment is becoming more and more important. [ ]
A. Keep
B. Saving
C. Save

答案

举一反三

We should stop plastic bags when we go shopping. [ ]
A. to use
B. using
C. used

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—May I borrow your new book?
—Here you are! I have just finished it.[ ]
A. read
B. to read
C. reading
D. reads

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用所给动词的适当形式填空 .
1. I am against _____ (build) a new zoo in our city.
2. Don"t worry.  All the little tigers _____ (take) good care of in the zoo.
3. _____ (collect) waste paper and bottles in the park is our duty.
4. We saw your brother _____ (throw) rubbish here just now.
5. We _____ (visit) a lot of famous zoos in the world so far.
6.         _ (not spit) everywhere.  You must keep the environment clean.
7. Some animals _____ (keep) in the zoo. I think it is not good for them.
8.  We find zoos are not suitableplace for animals _____ (live) in.
9. Many animals are only _____ (give) food once a day.
10. If we don"t support our zoo, they _____ (have) enough money to take care of so many fine animals.

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Stop         _ so much noise! Your father is sleeping.          [     ]
A. to make
B. making
C. make

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She has a dream of _____her own business in the future.   [     ]
A. own
B. to own
C. owning

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